novelize
🇬🇧/ˈnɒv(ə)laɪz/ 🇺🇸/ˈnɑːvəˌlaɪz/to convert (a true story, film, etc) into a novel (把长篇故事、电影等)编成小说
verb [vt. 及物动词] 使小说化;编成小说
convert into the form or the style of a novel;"The author novelized the historical event" “将……转化为小说的形式或风格”;“这位作者将这一历史事件小说化了”